I see only one really good reason for engaging in the argument regarding design, and that is self-education.

Although there is a lot of repetition in the online debate, I find that the creationist quote mining occasionally brings up nuggets that I haven't encountered or don't fully understand. So I have to read about them. Sometimes this takes weeks or months. Sometimes there are layers of understanding.

The other aspect of self-education is learning to express the argument.

I see this as a win-win situation. Regardless of whether the onlookers learn anything, I do.

agreed. and learning how to insult your opponent graciously is an important skill! LOL

--------------You're obviously illiterate as hell. Peach, bro.-FtK

Finding something hard to believe based on the evidence, is science.-JoeG